1. WEIGHT OF THE STRAIGHT END PIPEW= 0.02466 (D-t) x t, (kg/m)
D : Outside diameter of the pipe (mm) t : Thickness of the pipe (mm) W : Unit weight of the pipe (kg/m)
2. HYDROSTATIC TEST PRESSUREHidrostatic test pressure can be calculated by a formulas which includes a stress value which is a percentage of the yield stress of the steel.P : Hydrostatic Test Pressure (Bar)k : A percent of the yield stress (stated on the related production standard)s : Specified minimum yield stress (MPA)t : Thickness of the pipe (mm) D : Outside diameter of the pipe (mm)
P= 20 x k x s x t D3. UNIT SURFACE AREA OF THE PIPEA= D x Pi x 10(-3) (m2/m)A: Unit surface area (m2/m)D: Outside diameter of the pipe (mm)